DIY Paper Yield & Tensile Strengths

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Discussion Overview

The discussion revolves around the yield and tensile strengths of various types of paper, specifically in the context of experiments involving rotating boundary layers. Participants seek information on the mechanical properties of different papers, such as printer paper and kraft paper, to inform their experimental designs.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant expresses difficulty in finding yield and tensile strength data for common types of paper, despite extensive searching.
  • Another participant suggests that the information must exist, noting the importance of tensile strength in practical applications like printing.
  • A participant provides detailed information on bursting strength, including definitions and typical values for various grades of paper, but notes it may not fully address the original inquiry.
  • Concerns are raised about the "grain" of the paper potentially affecting the experiments, indicating a consideration of material properties in experimental design.

Areas of Agreement / Disagreement

Participants do not appear to reach a consensus on the availability of specific yield and tensile strength data for paper. There are multiple viewpoints regarding the relevance and sufficiency of the information provided.

Contextual Notes

Participants mention challenges in locating specific data and the potential impact of paper grain on experimental outcomes, highlighting the complexity of the topic.

Who May Find This Useful

Researchers and practitioners involved in materials science, engineering, and experimental physics may find this discussion relevant, particularly those interested in the mechanical properties of paper and its applications in experiments.

blainiac
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Hey there!

I'm about to do some tests with rotating boundary layers and wanted to use rotating sheets of paper (cut into circles) as this would be ideal for my experiments.

I was researching various materials but couldn't find yield and tensile strengths for different types of paper (printer paper, kraft paper, etc.). Is there documentation of the yield and UTS of common papers?

Thank you so much!
 
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Bystander,

I definitely have done my due diligence search-wise, even exact phrase matches like you've provided. Either it returns a paper written on the subject (instead of actual PAPER as the material). I have also looked at several videos but to no avail. I hope I haven't overlooked what I'm searching for due to sleepiness, but I'm sure there's a simple materials sheet but I can't find anything. Thanks for any help!

Edit: I found what I needed FINALLY, I'll post it soon if others are interested.
 
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blainiac said:
Edit: I found what I needed FINALLY, I'll post it soon if others are interested.
Please do, and tell us more about your project, if you can.
 
Well the information has to be out there someplace.
Papers comes in rolls from newsprint to fine paper.
Rolling it up and unrolling for printing would involve some tension, and the machine operators would need to know how much before the papers tears or rips.
 
From this link:

Strength Properties

Bursting Strength
Bursting strength tells how much pressure paper can tolerate before rupture. It is important for bag paper.
Bursting strength is measured as the maximum hydrostatic pressure required to rupture the sample by constantly increasing the pressure applied through a rubber diaphragm on 1.20 - inch diameter (30.5 mm) sample. The standards procedure is described in TAPPI T 403.

Bursting strength depends on basis weight of paper. To normalized the bursting strength for various paper, bursting strength is reported as

Burst Index = Bursting Strength (kPa)/ Grammage (g/m2) or

Burst Factor = Bursting Strength ( g/cm2)/ Grammage (g/m2) or

Burst Ratio = Bursting Strength ( lb/inch2)/ Basis Weight (lbs/ream)Typical Bursting Strength Values (Grade) KPa
Coated Paper (130 g/m2) 200-300
Coated Paper (250 g/m2) 300-650
Bond Office/Business Paper (100 g/m2) 250-300
Carbonless Paper (50-60 g/m2) 150-200
Bleached Kraft (60 g/m2) 210-260
Test Liner (186 g/m2)250-475
Not really all you'd want, though.
 
blainiac said:
I'm about to do some tests with rotating boundary layers and wanted to use rotating sheets of paper (cut into circles) as this would be ideal for my experiments.
Many papers have a definite "grain" to them. Will that be a problem in your experiments?
 

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